Steps to reproduce:
1. Create new Unity project using High Definition 3D Template
2. Open Shader Graph Templates window (Project window > Create > Shader Graph > From Template)
3. Select “Decal Simple” Template and press “Create”
4. When created, press on “Decal Simple” Shader in Project window and convert it to the Material
5. Select newly created Decal Material in Project window
6. In Inspector window change “Mesh Decal Bias Type” from “Default” to “Depth Bias”

Actual results: “Mesh Decal Bias Type” stays set to “Default” in Inspector window
Expected results: “Mesh Decal Bias Type” changes to “Depth Bias” in Inspector window

Reproducible with versions: 6000.3.9f1, 6000.4.0b9, 6000.5.0a7
Can’t test with versions: 6000.0.67f1 (Templates window not available)

Tested on (OS): macOS Silicon Tahoe 26.2 (M1)